Inferences:-- It can be inferred from the argument that
classification based on 'grown for florists' supersedes that based on 'the blooming season'.-- These
seem to be two different classification systems since the basis for classification is not 'grown for florists versus not grown for florists', or 'this blooming season vs that blooming season'.
Thus, there can be overlap.-- If the hydrangea is
grown for florists, it is big leaf hydrangea, irrespective of the blooming season.The argument above relies on which of the following to reach its conclusion?
A) The panicled hydrangea has
no features in common with the bigleaf hydrangea.
We don't know that. It might have some features in common.
B) If a hydrangea is panicled, it is not bigleaf.
It can be inferred from the argument that 'grown for florists' supersedes the blooming season. So, if we have identified a hydrangea as 'bigleaf', it can't be 'panicled'.
And if it is 'panicled hydrangea' then we did not feel the need to call it 'bigleaf hydrangea' in the first place (the reason for which could have been that it was not grown for florists).
CORRECT.C) No
bigleaf hydrangea blooms in the late summer.
We only know about panicled hydrangea blooming in late summer. Nothing to comment on big leaf's blooming.
D) All panicled hydrangea blooms in the late summer.
The argument says in first sentence '
If the hydrangea blooms in late summer it is a panicled hydrangea'. It doesn't say '
Only If the hydrangea blooms in late summer it is a panicled hydrangea'. May be we have panicled hydrangea that bloom in some other season(s) too.
E) Of the hydrangeas
used by florists, none blooms in the late summer.
'used by' is not the same as 'grown for'